🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.2

Radius: 13.3

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.55 AU - 0.71 AU

Year: 333 Days

Day: 9.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 93,448,273 km

• M1: 165,605 km (0.101 R)
• M2: 661,522 km (0.055 R)
• M3: 1,122,433 km (0.029 R)
• M4: 1,595,910 km (0.068 R)
• M5: 2,485,569 km (0.098 R)
• M6: 3,073,189 km (0.083 R)
• M7: 3,683,698 km (0.028 R)
• M8: 4,583,080 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.4

Radius: 14

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.63 AU - 0.91 AU

Year: 451 Days

Day: 10 Hours

Environment

Temp: -166 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 93,448,273 km

• M1: 175,777 km (0.098 R)
• M2: 734,825 km (0.115 R)
• M3: 1,779,616 km (0.108 R)
• M4: 2,806,905 km (0.119 R)
• M5: 3,355,779 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.1

Radius: 13.3

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.47 AU - 2.21 AU

Year: 1664 Days

Day: 10 Hours

Environment

Temp: -208 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 93,448,273 km

• M1: 165,605 km (0.117 R)
• M2: 588,219 km (0.116 R)
• M3: 1,177,036 km (0.078 R)
• M4: 1,663,828 km (0.102 R)
• M5: 3,217,401 km (0.086 R)
• M6: 4,140,271 km (0.1 R)
• M7: 4,816,752 km (0.098 R)
• M8: 5,781,210 km (0.112 R)
• M9: 6,532,640 km (0.113 R)
• M10: 7,634,727 km (0.088 R)
• M11: 8,092,497 km (0.116 R)
• M12: 8,625,813 km (0.088 R)
• M13: 9,063,237 km (0.115 R)
• M14: 9,983,115 km (0.112 R)
• M15: 10,663,187 km (0.045 R)
• M16: 11,236,296 km (0.063 R)
• M17: 11,829,900 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.3

Radius: 14.8

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 4 AU - 5.18 AU

Year: 6558 Days

Day: 11.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 93,448,273 km

• M1: 184,305 km (0.099 R)
• M2: 653,892 km (0.114 R)
• M3: 1,387,520 km (0.118 R)
• M4: 2,337,766 km (0.094 R)
• M5: 2,826,203 km (0.049 R)
• M6: 3,320,474 km (0.12 R)
• M7: 3,826,414 km (0.065 R)
• M8: 4,486,440 km (0.117 R)
• M9: 5,573,717 km (0.097 R)
• M10: 6,934,460 km (0.06 R)
• M11: 13,573,763 km (0.079 R)
• M12: 15,293,241 km (0.097 R)
• M13: 16,770,370 km (0.083 R)
• M14: 17,609,165 km (0.061 R)
• M15: 19,092,428 km (0.113 R)
• M16: 21,247,236 km (0.093 R)
• M17: 23,084,447 km (0.109 R)
• M18: 23,800,124 km (0.041 R)
• M19: 24,448,481 km (0.082 R)
• M20: 25,025,629 km (0.098 R)
• M21: 27,073,325 km (0.114 R)
• M22: 27,780,175 km (0.05 R)
• M23: 29,230,676 km (0.08 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 486.4

Radius: 5.6

Gravity: 15.51 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.79 AU - 8.27 AU

Year: 12430 Days

Day: 19.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 93,448,273 km

• M1: 69,713 km (0.092 R)
• M2: 287,378 km (0.112 R)
• M3: 470,485 km (0.1 R)
• M4: 718,519 km (0.105 R)
• M5: 947,403 km (0.069 R)
• M6: 1,200,373 km (0.078 R)
• M7: 1,376,001 km (0.097 R)
• M8: 1,909,018 km (0.116 R)
• M9: 2,652,221 km (0.09 R)
• M10: 3,940,109 km (0.104 R)
• M11: 5,597,653 km (0.103 R)
• M12: 5,842,096 km (0.078 R)
• M13: 7,010,904 km (0.078 R)
• M14: 7,377,569 km (0.038 R)
• M15: 7,671,528 km (0.113 R)
• M16: 7,886,351 km (0.1 R)
• M17: 10,786,156 km (0.104 R)
• M18: 11,496,746 km (0.119 R)
• M19: 12,064,171 km (0.119 R)
• M20: 14,456,689 km (0.096 R)
• M21: 16,857,586 km (0.107 R)
• M22: 19,038,124 km (0.085 R)
• M23: 21,569,619 km (0.045 R)
• M24: 22,783,008 km (0.109 R)
• M25: 23,949,871 km (0.049 R)
• M26: 24,316,835 km (0.094 R)
• M27: 26,892,312 km (0.117 R)
• M28: 28,194,711 km (0.103 R)
• M29: 28,809,857 km (0.047 R)
• M30: 29,329,261 km (0.068 R)
• M31: 29,960,714 km (0.115 R)
• M32: 30,173,292 km (0.111 R)
• M33: 33,368,553 km (0.118 R)
• M34: 33,941,363 km (0.11 R)
• M35: 34,172,193 km (0.111 R)
• M36: 38,260,403 km (0.112 R)
• M37: 42,128,256 km (0.064 R)
• M38: 44,846,749 km (0.045 R)
• M39: 49,288,010 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 952.6

Radius: 5.5

Gravity: 31.49 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 7.27 AU - 7.49 AU

Year: 13369 Days

Day: 19 Hours

Environment

Temp: -239 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 93,448,273 km

• M1: 68,965 km (0.094 R)
• M2: 392,694 km (0.104 R)
• M3: 1,010,683 km (0.106 R)
• M4: 1,208,452 km (0.055 R)
• M5: 1,402,630 km (0.082 R)
• M6: 1,683,275 km (0.054 R)
• M7: 3,353,835 km (0.109 R)
• M8: 3,627,449 km (0.053 R)
• M9: 3,975,414 km (0.105 R)
• M10: 5,593,614 km (0.12 R)
• M11: 6,340,706 km (0.081 R)
• M12: 6,802,664 km (0.072 R)
• M13: 8,273,809 km (0.118 R)
• M14: 9,031,672 km (0.075 R)
• M15: 11,156,860 km (0.076 R)
• M16: 11,643,352 km (0.1 R)
• M17: 18,129,018 km (0.063 R)
• M18: 19,489,311 km (0.111 R)
• M19: 21,007,730 km (0.037 R)
• M20: 27,541,716 km (0.057 R)
• M21: 28,094,181 km (0.064 R)
• M22: 28,541,329 km (0.112 R)
• M23: 32,659,010 km (0.078 R)
• M24: 35,570,335 km (0.118 R)
• M25: 36,357,219 km (0.102 R)
• M26: 38,102,129 km (0.105 R)
• M27: 38,649,956 km (0.082 R)
• M28: 41,612,892 km (0.066 R)
• M29: 43,075,660 km (0.112 R)
• M30: 50,247,082 km (0.085 R)
• M31: 51,237,420 km (0.076 R)
• M32: 56,031,583 km (0.116 R)
• M33: 58,174,722 km (0.117 R)
• M34: 59,266,338 km (0.087 R)
• M35: 61,866,798 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39.6

Radius: 6.5

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 8.45 AU - 8.51 AU

Year: 16467 Days

Day: 18.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 93,448,273 km

• M1: 80,783 km (0.076 R)
• M2: 1,272,928 km (0.104 R)
• M3: 4,827,224 km (0.113 R)
• M4: 9,899,190 km (0.115 R)
• M5: 10,144,980 km (0.115 R)
• M6: 10,563,704 km (0.119 R)
• M7: 13,521,254 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 318.8

Radius: 5.2

Gravity: 11.79 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 7.78 AU - 9.18 AU

Year: 16467 Days

Day: 21 Hours

Environment

Temp: -242 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 93,448,273 km

• M1: 64,626 km (0.116 R)
• M2: 702,362 km (0.104 R)
• M3: 873,053 km (0.067 R)
• M4: 1,744,012 km (0.102 R)
• M5: 1,923,829 km (0.045 R)
• M6: 3,789,164 km (0.074 R)
• M7: 4,149,247 km (0.097 R)
• M8: 10,743,969 km (0.115 R)
• M9: 12,514,161 km (0.096 R)
• M10: 18,974,994 km (0.08 R)
• M11: 22,065,387 km (0.096 R)
• M12: 22,418,288 km (0.049 R)
• M13: 22,864,688 km (0.068 R)
• M14: 23,226,117 km (0.076 R)
• M15: 23,683,288 km (0.11 R)
• M16: 35,200,379 km (0.088 R)
• M17: 36,290,798 km (0.1 R)
• M18: 42,217,118 km (0.113 R)
• M19: 45,836,339 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 986

Radius: 4.9

Gravity: 41.07 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 9.1 AU - 11.9 AU

Year: 22689 Days

Day: 20.9 Hours

Environment

Temp: -241 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 93,448,273 km

• M1: 61,036 km (0.051 R)
• M2: 363,672 km (0.098 R)
• M3: 711,637 km (0.095 R)
• M4: 938,278 km (0.116 R)
• M5: 1,555,369 km (0.072 R)
• M6: 2,110,976 km (0.088 R)
• M7: 2,736,743 km (0.101 R)
• M8: 3,667,093 km (0.108 R)
• M9: 4,345,818 km (0.077 R)
• M10: 8,016,052 km (0.079 R)
• M11: 8,179,862 km (0.116 R)
• M12: 9,633,504 km (0.114 R)
• M13: 13,651,703 km (0.084 R)
• M14: 16,637,527 km (0.068 R)
• M15: 18,949,712 km (0.076 R)
• M16: 25,707,496 km (0.076 R)
• M17: 31,276,128 km (0.105 R)
• M18: 38,831,718 km (0.052 R)
• M19: 39,301,305 km (0.102 R)
• M20: 47,339,349 km (0.085 R)
• M21: 50,244,240 km (0.085 R)
• M22: 50,988,639 km (0.103 R)
• M23: 51,740,368 km (0.109 R)
• M24: 54,039,688 km (0.097 R)
• M25: 55,017,609 km (0.065 R)
• M26: 58,635,484 km (0.117 R)
• M27: 66,564,171 km (0.095 R)
• M28: 67,687,501 km (0.115 R)
• M29: 67,913,693 km (0.096 R)
• M30: 80,382,077 km (0.096 R)
• M31: 81,144,578 km (0.18 R)
• M32: 81,911,865 km (0.209 R)
• M33: 92,054,451 km (0.1 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 540 - 16,282 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit